US6212408B1 - Voice command system and method - Google Patents
Voice command system and method Download PDFInfo
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- US6212408B1 US6212408B1 US09/305,099 US30509999A US6212408B1 US 6212408 B1 US6212408 B1 US 6212408B1 US 30509999 A US30509999 A US 30509999A US 6212408 B1 US6212408 B1 US 6212408B1
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- communication device
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/26—Devices for calling a subscriber
- H04M1/27—Devices whereby a plurality of signals may be stored simultaneously
- H04M1/271—Devices whereby a plurality of signals may be stored simultaneously controlled by voice recognition
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M1/00—Substation equipment, e.g. for use by subscribers
- H04M1/60—Substation equipment, e.g. for use by subscribers including speech amplifiers
- H04M1/6033—Substation equipment, e.g. for use by subscribers including speech amplifiers for providing handsfree use or a loudspeaker mode in telephone sets
- H04M1/6041—Portable telephones adapted for handsfree use
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04M—TELEPHONIC COMMUNICATION
- H04M2250/00—Details of telephonic subscriber devices
- H04M2250/74—Details of telephonic subscriber devices with voice recognition means
Definitions
- the present invention relates generally to telephonic systems and handsets and more specifically to a system and method for facilitating voice commands with telephone and communication systems.
- Wireless personal communication devices have revolutionized the telecommunications industry.
- Cordless telephones, as well as Cellular, PCS, emerging satellite networks and other wireless services provide wireless personal communications to businesses and individuals at home, in the office, on the road, and virtually anywhere the wireless network reaches.
- Wireless telephone subscribers no longer have to stop at pay telephones along the road, or wait until they return home or to the office to check messages and return important business calls. Instead, wireless subscribers carry out their day to day business from their cars, from the job site, while walking along the airport concourse, and just about anywhere their signals are accessible.
- the speakerphone feature enables users to conduct other tasks while carrying on a conversation without having to hold the instrument to their ear.
- the user can drive with preferably with both hands on the wheel and both eyes on the road.
- the user can carry on other tasks while also carrying on a conversation.
- the present invention is directed toward systems and methods implementing a voice command mode with an electronic device such as, for example a communication device.
- a voice command mode is provided with communication hand set or device such as, for example, a telephone, a cordless phone, a wireless handset, a satellite phone, or other communication device.
- communication hand set or device such as, for example, a telephone, a cordless phone, a wireless handset, a satellite phone, or other communication device.
- There is methods and techniques can be provided to allow the voice to enter the voice command mode and exit from the voice command mode in a manner that is advantageously beneficial to a user.
- a button activity such as, for example depressing or manipulating a button or switch, a key stroke, a key sequence, or other manual operation.
- manual entry may be requested by a spoken command that is interpreted as instructing the device to enter the voice command mode.
- the communication device can be programmed to automatically enter the voice command mode based on the occurrence of certain events or conditions. For example, on the occurrence of an incoming call in the idle mode, the system can automatically enter the voice command mode, allowing the user to provide a voice command indicating whether the device should answer the call, ignore the call, or send the incoming call to voice mail.
- the communication device may be programmed to automatically enter the voice command mode upon the initiation of a call to a particular recipient, or upon a receipt of a call from a particular caller. This scenario can be especially useful in situations such as those where the other party to the call is an automated system that utilizes DTMF tones or other signals for operation or navigation.
- the communication device can be programmed to automatically enter the voice command mode when connected to a hands-free kit.
- the communication device can interpret one or more voice commands received by the user, and can act on those voice commands.
- the voice command mode can allow the user to vocally request key stroke inputs, and can convert this vocal input into appropriate tones (such as, for example DTMF tones).
- the communication device can communicate these DTMF tones across the communication channel.
- the user in the voice command mode, the user can, through voice commands, vocally enter a number or alphanumeric sequence without physically having to press the number or sequence on the keypad.
- the communication device in interpreting these commands, causes the number or sequence to be “dialed.”
- voice command mode the user can vocally command the communication device to look-up a number for a desired party and to dial that number.
- the voice command mode can be implemented in scenarios where the user is accessing a menu-driven system such as, for example, voice mail systems, automated account systems, paging systems, and other automated systems.
- a menu-driven system such as, for example, voice mail systems, automated account systems, paging systems, and other automated systems.
- the user can place a call to or receive a call from the voice mail system.
- the voice command mode the user can enter his or her password information by speaking the password (usually a numeric sequence) instead of pressing the sequence. Additionally, the user can navigate through the voice-mail system options with voice commands as opposed to physical keystroke entries.
- the same advantages can be found by accessing other automated systems as well.
- the user does not need to constantly remove the handset from his or her ear, enter key strokes, replace the handset to his or her ear, enter another key stroke, and so on.
- the operation is easier and more convenient for the user.
- manual exit of the voice command mode can be provided in the form of a physical action performed by the user, or even a voice command provided by the user such as, for example, “exit voice command mode.”
- This manual mode allows the user direct control over when he or she exits the voice command mode.
- additional techniques can be provided for exiting the voice command mode.
- These additional techniques can include automatic exiting upon the expiration of a timeout period, upon the receipt of a pre-determined period of silence, and upon the issuance of a certain commands, command sequences, or upon the occurrence of other defined conditions.
- the provisions for automatically exiting the voice command mode can be implemented to provide a more seamless or transparent operation to the user.
- the operational parameters surrounding the voice command mode can be varied based on a mode of the communication device, the type of command entered, or other parameters.
- dialed should not be limited to a strict construction wherein a number or sequence is physically dialed.
- dial in its various forms generally refers to causing the appropriate DTMF tone(s) or other signal(s) to be sent to a communication channel or network, and perhaps to an end recipient.
- the invention is at times described in terms of DTMF tones being generated and transmitted. This is provided for illustration purposes only. As would be understood by one of ordinary skill in the art, there are numerous alternatives to and equivalents of DTMF tones. As such, the use of the term DTMF in this document is intended to encompass these alternative and equivalent signaling techniques as well.
- FIG. 1 is a diagram generally illustrating an example environment of the invention as a wireless communication handset.
- FIG. 2 is an operational flow diagram generally illustrating a process for providing a hands-free command mode or voice command mode according to one embodiment of the invention.
- FIG. 3 is an operational flow diagram illustrating a process for utilizing a timer to automatically exit the voice command mode according to one embodiment of the invention.
- FIG. 4 is an operational flow diagram illustrating a process for exiting the voice command mode upon an elapsed period of silence according to one embodiment of the invention.
- FIG. 5 is an operational flow diagram illustrating a process for manually exiting the voice command mode according to one embodiment of the invention.
- FIG. 6 is an operational flow diagram illustrating a process for automatically exiting the voice command mode upon the completion of a discreet command or command sequence according to one embodiment of the invention.
- FIG. 7 is an operational flow diagram illustrating a process for providing a voice command mode in alternative configurations depending on whether the communication handset is in the idle mode or the conversation mode according to one embodiment of the invention.
- FIG. 8 is an operational flow diagram illustrating a process for implementing a voice command mode for an incoming call in accordance with one embodiment of the invention.
- FIG. 9 is a block diagram illustrating an example processor-based system according to one embodiment of the invention.
- FIG. 10 is a block diagram generally illustrating functionality that can be used to implement one or more aspects of the voice command mode according to one embodiment of the invention.
- the present invention is directed toward a system and method for providing enhanced handset or instrument features in combination with hands-free access. More specifically, according to one aspect of the invention, a hands-free command mode is provided for a communication device, allowing a user to utilize voice commands in place of or in addition to key-stroke entries.
- a technique can be provided to allow the communication device to enter a voice command mode, wherein the communication device accepts voice commands spoken by the user.
- the voice commands can be used to perform or direct a number of functions including, for example, the entry of DTMF signals or other keystrokes, or accessing device features.
- Various techniques can be used to allow the communication device to enter and exit the voice command mode, as well as to recognize different types of voice commands to handle a variety of different situations.
- One such example environment is a telephone environment, or a portable communication handset such as a cordless telephone, cellular phone or other wireless communication device.
- a wireless communication handset such as, for example, a cellular, GSM, PCS, radio, or other wireless communication handset.
- Such handsets or communication devices provide wireless communication services and often include a keypad for control and data entry of the device, as well as a display to provide information to the user regarding the communication or regarding information entered by the user on the keypad.
- Wireless communication handsets or devices such as those that would benefit from the various features and aspects of the present invention, can be implemented in a number of different configurations with a number of different architectures.
- implementation of the features of the present invention is not dependent on a particular or specific architecture of the electronic device or communication device.
- an example wireless communication device is described with reference to FIG. 1 .
- the wireless communication device 100 includes a processor 104 , a speaker 106 , a display 108 , a keypad 110 , a transceiver 112 , a memory 114 , a microphone 116 , a power source 118 , a data port 122 and an antennae 120 .
- Wireless communication device 100 can be a handheld handset, integrated vehicle phone or other preferably wireless communication device configured to communicate with other communication devices such as, for example, a base station 112 or other communication device.
- Contemporary communication handsets typically include one or more processors 104 to control the operation and the features of the handset.
- Processor 104 typically has associated therewith computer program code running on the processor to carry out the functionality of the device.
- Memory 114 such as RAM, ROM, or other memory, can be included and interfaced with the processor to store the program code and to provide other storage space for data or other information useful in executing the program code as well as in carrying out functions of the handset.
- the features and functionality of the present invention can be implemented using hardware, software, or a combination thereof, and such software can run on a processor such as processor 104 .
- Communication handsets 100 typically also include a transceiver 112 .
- Transceiver 112 provides a transmitter to transmit voice and data information via antenna 120 to a recipient communication device such as, for example, base station 112 .
- Transceiver 112 typically also includes a receiver to receive voice and data communication from another communication device (e.g., base station 112 ) and to provide the received voice and data information to the user or to facilitate internal functionality of the handset.
- the base station may be the telephone base that is connected via the user's telephone line to a PSTN.
- base station 112 may be the cell site base station.
- base station 112 may include a relay satellite and an earth station associated therewith.
- User interface portions of the typical wireless communication handset 100 include a speaker 106 , a display 108 , a keypad 110 , and a microphone 116 .
- Microphone 116 accepts voice or other audio information from the user, converts this information to electrical signals such that they can be transmitted by the transceiver to a recipient.
- speaker 106 converts electrical signals received by transceiver 112 into audio information that can be heard by a user of the wireless communication device 100 .
- Display 108 can be included and used to display information to the user such as, for example, call information, keypad entry display, signal presence and signal strength display, battery life display, identification of an incoming call, or any other information useful to the user.
- Display 108 can include any type of display, but is preferably a liquid crystal display (LCD) due to the LCD's low power consumption characteristics.
- Display 108 can also include other visual displays such as, for example, light emitting diode (LED) indicators or other visual indicators.
- LED light emitting diode
- Keypad 110 can be implemented using a numeric or an alphanumeric keypad and can also include special function keys.
- keypad 110 includes back lighting such that information on the keys can be viewed by the user in low light or dark conditions.
- Many electronic devices including wireless communication devices include a flip panel (not illustrated) that can be closed to conceal some or all of the keys on the keypad.
- Power source 118 is used to provide power to one or more of the components of the wireless communication handset 100 .
- Power source 118 can be implemented, for example, using rechargeable batteries such as NiCad or NiMH rechargeable batteries. Other power sources can be included in addition to or in place of batteries.
- Data port 122 can be used to exchange or share data with a host computer or other device.
- a user may wish to upload collected contact information to his or her laptop or desktop computer.
- Data port 122 can be a hard wired or wireless data port and can use any of a number of different communication standards.
- One such example communication standard prominent in PC interfaces is RS-232.
- data port 122 may be used to interface a hands-free kit to the handset.
- FIG. 2 is an operational flow diagram generally illustrating a process for providing a hands-free command mode or voice command mode according to one embodiment of the invention.
- FIG. 2 is an operational flow diagram generally illustrating a process for providing a hands-free command mode or voice command mode according to one embodiment of the invention.
- the communication device enters the voice command mode.
- voice command mode Several techniques can be utilized to allow the device to enter the voice command mode including, for example, a button or keypad entry allowing user-directed entry into the voice command mode; recognition of a specific command word or phrase that directs the communication device to enter the voice command mode; entry of the voice command mode in response to the occurrence of an event or events, upon which the device may have been programmed to enter voice command mode; or other alternative techniques or scenarios allowing or directing the communication device to enter the voice command mode.
- an audible or visual indicator can be provided to the user that the communication device has entered the voice command mode.
- this indicator can be implemented to provide a simple ‘beep’ to the user upon entry of the voice command mode.
- Alternative examples can include flashing an LED, flashing the keypad or display backlights, providing an alphanumeric or graphical indication on the display, a spoken indication (e.g., through voice synthesis or playback of recorded voice) to the user, and so on.
- the communication device accepts the voice commands from the user.
- a speech recognizer or interpreter such as, for example, speech recognition software, can be included to recognize and interpret the voice commands provided by the user.
- the range or number of commands accepted by the system can be limited in number. Limitation such as in this embodiment allows simplification of the speech recognition portion of the invention.
- sample voice commands can include voice commands for standard keypad entries, as well as voice commands to operate the communication device and its features.
- commands for operation of the device may include commands to answer or ignore an incoming call; commands to dial an outgoing call, commands to adjust the volume at the handset or of the speaker; commands to access a directory, calendar, or other feature within the phone; and so on.
- Commands for standard keypad entry can include, for example, voice commands to “dial” or effectively depress certain keys or key sequences, resulting in the generation of the corresponding DTMF tones.
- Key sequence commands can also be used for local control of the communication device, and in this scenario do not need to result in generation of DTMF tones.
- the communication device carries out the command provided by the user.
- This can include interpretation of a command type as well as interpretation of the specific command given.
- command type the communication device may recognize two types of commands: keystroke entry commands; and phone feature commands; although others are possible.
- the handset may determine whether the user is entering a command of the type that will generate DTMF tones, or of a type that will adjust a function or feature of the telephone. Carrying this example further, if the command is interpreted as a DTMF type command, the communication device can interpret the speech patterns of the user as one or more of the several keypad buttons and may generate the appropriate DTMF tone or tones accordingly.
- the command received by the communication device may be echoed back to the user for verification.
- the echo and verification can be a mandatory step in that the command is not executed unless the echoed command is verified or approved by the user.
- the echo can be provided merely as a confirmation or indication of the command the communication device is following.
- the communication device exits the voice command mode.
- numerous different techniques can be implemented for allowing the device to exit the voice command mode at an appropriate time or upon the occurrence of appropriate events.
- the communication device may be programmed to exit the voice command mode after a predetermined timeout period, upon detecting a predetermined amount of silence, upon manually being turned off or terminated by the user, or upon the occurrence of other events to which the device was programmed to respond accordingly.
- various techniques or devices included according to one or more aspects of the invention to allow a communication device to enter and exit the voice command mode. These various techniques can be utilized individually or collectively to allow versatility in the application of the voice command mode. Additionally, the various techniques can be selected and implemented in accordance with a mode of operation of the communication device to enhance the user friendliness or user operability of the system.
- a manual switch or button, or series of keystrokes can be provided to allow the user to manually request that the communication device enter the voice command mode.
- a button or key can be provided on the keypad or elsewhere on the communication device that, when depressed, causes, the communication device to enter the voice command mode.
- a special-purpose, limited-purpose, or even multi-function button can be positioned in proximity with a location where the user's index finger or thumb generally rests when using the communication device.
- simultaneous depression of both up and down volume keys causes entry into the voice command mode. Other locations can be chosen as well.
- the user can direct the communication device to enter the voice command mode with the press of a button, even while he or she is holding the communication device up to his or her ear.
- This ‘pushbutton’ embodiment may be attractive or desirable in situations where the user is accessing a menu-driven system such as a voice mail system, account information system, menu driven phone system, or other like system.
- the user can listen for prompts on the handset requesting, for example, the user to enter his or her password information. Without removing the phone from his or her ear to look at the keypad, the user can simply press the voice command activation button, speak his or her password into the microphone of the communication device, and have the device generate the appropriate DTMF tones to enter his or her password into the system.
- the user does not have to continually remove the phone from his or her ear to enter instructions such as passwords, message requests, message forwarding, or other voice mail commands, in accessing the system.
- the voice recognition process can continually run in the background waiting for the recognition of a specific voice command.
- the phone may enter the voice command mode without requiring the user to depress a particular key or key sequence.
- the system may be programmed to interpret a special access word as the command to enter the voice command mode.
- the communication device may be programmed to “listen for” the special command word in the user's speech. Upon receiving and interpreting this special command word, the communication device can enter the voice command mode allowing specific voice commands to be accepted by the communication device and acted upon.
- the special code word can be selected by the user as his or her personal code word to enter the voice command mode.
- the user can select a word that is unlikely to come up during conversation, such as, for example, “Abercrombie.”
- a word unlikely to come up in conversation can help to avoid unintentional entry by the communication device into the voice command mode.
- the voice command mode can also be entered in one embodiment upon the detection of the occurrence of one or more events.
- the communication device may be programmed to enter the voice command mode when the device is idle and an incoming call is detected.
- the device can automatically enable some or all of the portions of the voice command mode to interpret vocal commands from the user regarding treatment of the incoming call.
- the voice commands that may be included can be a command to answer the call, ignore the call, send the call to voice mail, or provide an identification of the caller placing the incoming call.
- a voice synthesizer may be included with the communication device to allow the device to vocally identify the incoming caller. In this manner, it is possible for the communication device to allow incoming calls to be handled without physical intervention by the user.
- the communication device may be programmed to detect a signal such as a specific DTMF tone or DTMF tone sequence from the other party with whom the call is connected, and upon detection of this tone or tones, automatically enter the voice command mode.
- a voice mail system may be programmed to generate a particular tone or tones or other signal when user input is required. (Such as, for example, when the user is required to enter password to access a voice mail account). Upon receipt of this tone or tones, the communication device can automatically enter the voice command mode, allowing the user to enter his or her password without needing to access the keypad.
- the communication device may be programmed to automatically enter the voice command mode upon dialing of a predetermined phone number. For example, when a user accesses his or her voice mail system from out of the office, it is typical that the user has to enter one or more key sequences to access his or her account, play back messages, forward messages, delete messages and perform other voice mail operations. As such, the communication device can be programmed to automatically enter the voice command mode when the user's voice mail access number is dialed.
- numbers for which the user would like the voice command to automatically be activated can be stored in memory with the communication device. More specifically, in one embodiment, for devices that have built-in phone directories or speed dial directories or other number-memory features, a field can be provided within this data set to indicate which of those numbers should have an automatic voice command activation feature associated therewith.
- the communication device may be programmed to automatically enter the voice command mode when connected to a hands-free kit, or when activated in a speakerphone mode.
- the communication device can, for example, access a directory, dial a selected party, or perform other functions in the voice command mode.
- the communication device may wish to exit the voice command mode and reply to a voice mail message, introduce a forwarded message, or send his or her own voice mail message or messages to other recipients.
- the voice-command mode is used to screen and answer an incoming call, it is desired that the communication device exit the voice-command mode so the user can converse with the caller.
- the caller enters the voice command mode during a call to adjust the volume, it is desirable to exit the voice command mode, allowing the caller to return to the call.
- the voice command mode is used to access a number from a directory and dial that number, it is desirable to exit the voice command mode after the number is dialed.
- FIG. 3 is an operational flow diagram illustrating a process for utilizing a timer to automatically exit the voice command mode according to one embodiment of the invention.
- the communication device enters the voice command mode.
- the voice command mode can be entered by any of a number of different scenarios, some of which are described above.
- the communication device sets a timer to begin counting a timeout period for exiting the voice command mode.
- the timer can be programmed to count down a predetermined period of time, after which voice command mode is automatically exited.
- the time can be user programmable such that a user can program the timer based on his or own user preferences.
- the timer can be pre-programmed by a manufacturer or supplier of the communication devices such that the user does not need to perform the programming steps.
- the timer can be “trained” based on user activities. For example, where a manual on/off feature is provided, the communication device may measure the length of time that the user manually keeps the voice command mode activated. These times can be used as a basis for programming the timer for the timeout period.
- the communication device can remain in the voice command mode, can accept voice command inputs from the user, interpret these commands, and carry out these commands. This is illustrated by steps 216 , 218 , 220 , and 222 . As indicated by the alternative paths illustrated for flow line 224 , the communication device can be programmed to reset the timer after each command input, or to continue counting down the previously set timer to a maximum timeout period.
- the choice of whether to reset the timer after each command, or to exit the voice command mode after each command can be made based on the type of commands being entered, or the phone number to which the caller is connected. For example, if the commands being entered are voice commands that are to be interpreted as DTMF tones, the system may be programmed to assume that subsequent voice commands will be entered. As such, in this embodiment, it may be conceivable that the communication device is programmed to reset the timer after each voice command input. As a more specific example, when a user accesses his or her voice mail account, the system may reset the timer after each entry because it is anticipated that the user will be entering additional key sequences via voice command.
- the communication device can continue to interpret these commands and act on them as illustrated in FIG. 3 .
- the communication device exits the voice command mode as illustrated in a step 226 . The operation continues at the beginning of the process where the communication device again waits to enter the voice command mode. This is illustrated by flow line 228 .
- FIG. 4 is an operational flow diagram illustrating a process for exiting the voice command mode upon an elapsed period of silence according to one embodiment of the invention.
- the communication device enters the voice command mode.
- a step 264 in the voice command mode the communication device accepts voice command inputs from the user.
- the communication device continues to interpret and act on these voice command modes until the user has remained silent for a given period of time. This is illustrated by steps 264 , 266 , 268 , and 270 .
- steps 264 , 266 , 268 , and 270 As long as the user does not remain silent for the predetermined time period, the communication device continues to accept user input as illustrated by flow line 272 . If, on the other hand, the user remains silent for greater than the timeout period, the voice command mode is exited as illustrated by step 274 , and the operation can begin again as illustrated by flow line 276 .
- the entry and exit of the command mode can be controlled manually by the user.
- a button or keystroke sequence is utilized to enter the voice command mode
- the same button or another sequence can be utilized to exit the voice command mode.
- the user may depress a specified button and leave that button depressed while he or she wishes to stay in the voice command mode. Releasing that button, then, in this scenario, causes the communication device to exit the voice command mode.
- the button may be a “one-touch” button wherein pressing the button once causes the communication device to enter the voice command mode and pressing the button again causes the device to exit the voice command mode.
- FIG. 5 is an operational flow diagram illustrating a process for manually exiting the voice command mode according to one embodiment of the invention.
- the communication device enters the voice command mode. This mode can be entered manually or automatically according to the various embodiments and scenarios discussed above.
- the communication device can accept, interpret and act on voice commands received by the user as illustrated by steps 314 , 316 and 318 .
- the communication device exits the voice command mode as illustrated by steps 320 and 322 .
- the device In a fully manual mode, the device remains the voice communication mode until the occurrence of this event as illustrated by flow line 324 .
- this manual mode can be combined with either of the timers discussed above with reference to FIGS. 3 and 4 to provide additional enhancements and features with the invention.
- the communication device can be programmed to exit the voice command mode upon the completion of a discreet command or command sequence.
- FIG. 6 is an operational flow diagram illustrating a process for automatically exiting the voice command mode upon the completion of a discreet command or command sequence according to one embodiment of the invention. Referring now to FIG. 6, in a step 362 , the communication device enters the voice command mode. Voice commands are accepted, interpreted and acted upon in the voice command mode as illustrated by steps 364 and 366 .
- the communication device can determine whether the command or command sequence is complete and exit the voice command mode as illustrated by steps 370 and 374 , or can continue accepting voice input as illustrated by flow line 372 .
- the voice command mode can allow the user to vocally provide instructions as to whether to answer the phone. If the user commands the phone to “answer” the call, the communication device can determine that the command or a series of commands is complete and that the voice command mode can be exited so the user can carry on a conversation with the caller.
- the communication device may be programmed to exit the voice command mode on the occurrence of certain pre-defined or anticipated events. For example, continuing with the voice mail system example, the communication device may be programmed to exit out of the voice command mode upon the receipt of certain voice commands in a given operational environment.
- the communication device is programmed to automatically enter the voice command mode when the voice mail system telephone number is dialed.
- the communication device is programmed to exit the voice command mode when certain voice mail commands are entered by the user.
- the user may dial the number, and in the voice command mode select his or her voice mail box, enter his or her password, and begin play back and deletion and saving of messages.
- the communication device can be programmed to exit the voice command mode when the user enters a command such as, for example, a “6” to forward a message, or an “8” to reply to a message.
- a command such as, for example, a “6” to forward a message, or an “8” to reply to a message.
- the communication device can once again enter the voice command mode to allow the user with touch-free voice command navigation through the voice mail system.
- exiting the voice conversation mode and returning back to the voice command mode at the conclusion of an introduction or reply can be made based on timers, silence detection, manual intervention, or other techniques.
- the communication device can be programmed to remain out of the voice command mode, until the user request that the device return to the voice command mode.
- the communication device can determine that it is entering a voice-mail system, and utilize this fact in determining which command or series of commands may trigger a temporary or permanent exit from the voice-command mode.
- alternative scenarios can be envisioned and accounted for in developing entry and exit triggers for the voice-command mode.
- the strategies can be based on a system being accessed, a number dialed, or generally implemented for a range of alternative situations.
- a communication device can be programmed to exit the voice command mode upon completion of a dial command or sequence of dial commands. More particularly, a caller may use voice command mode to access a number in a directory and to call that accessed number. The communication device can be programmed to exit the voice command mode when the number is dialed so that the caller can engage in a conversation with the called party. In one implementation, the communication device can also determine whether the number dialed is a voice mail or other automated account, and if so, remain in the voice command mode (for example, at least until the caller has vocally entered his password).
- the techniques described above for exiting the command mode can be implemented independently or in various combinations to achieve the desired functionality. Additionally, it can be appreciated that the various techniques for exiting the command mode can be chosen selectively based on any of a number of parameters such as: a mode that the communication device is in (e.g., idle mode, conversation mode, and so on); a number being called or from which the call originated (e.g., voice mail number, account access number, and so on); the type of command being accessed (e.g., DTMF, feature command, and so on), or other operational parameters that may be present. In providing such flexibility, maximal advantage of the features can be utilized. Furthermore, the implementation and configuration of the various features and aspects of the invention described above can also be implemented in different configurations based on these same factors and parameters.
- FIG. 7 is an operational flow diagram illustrating a process for providing a voice command mode in alternative configurations depending on whether the communication handset is in the idle mode or the conversation mode according to one embodiment of the invention.
- the communication device enters the voice command mode.
- the communication device can provide an indication to the caller that it has entered the voice command mode.
- this indication can be a special tone played to the caller via the device speaker, or a visual indication such as a flashing LED or indication on the device display, or a combination of the above indications.
- the communication device determines whether it is configured in the idle mode or the conversation mode.
- determination of whether the phone is in the idle mode or in the conversation mode to some extent dictates the operation of the voice command mode.
- alternative distinctions e.g., other operational modes and so on can be used to dictate or define the operation of the voice command mode.
- the voice command mode determines that DTMF is not required.
- the communication device can be programmed to except limited range of commands in the idle mode such as, answer or identify an incoming call.
- it is not anticipated that the commands entered in the idle mode will require DTMF tone generation.
- the voice command mode simply accepts the voice command, interprets the voice command, acts on the voice command and exits the voice command mode.
- the communication device may transition from the idle mode to the conversation mode.
- a command that the communication device place a new call or that the communication device answer and incoming call is given.
- the voice command mode is preferably automatically exited upon the answering of a call and the operation returns to the top of FIG. 7 where the device waits for the command to enter the voice command mode.
- the communication device can remain in the voice command mode, such that the user can use the voice command features to instruct the communication device to dial the desired phone number.
- the user's voice is masked from the phone call as illustrated by step 432 . That is, the user's voice is accepted by the communication device as a voice command and interpreted by the communication device as illustrated in steps 434 and 436 .
- the masking can ensure that the user's voice is not transmitted to the other party or parties to the communication.
- the system determines whether the voice command entered is an alphanumeric command. If so, DTMF tones are generated in response to the alphanumeric command. This is illustrated by steps 438 and 440 . If, on the other hand, the system determines that alphanumeric commands are not entered, the commands are interpreted to perform a function or accesses a feature of the communication device during the conversation. As such, as illustrated by steps 438 and 442 , the requested function is preformed in response to the command. As an example, the user may have difficulty hearing another party in a conversation, and the user enters the command mode to request an increase in volume of the speaker.
- the system can exit the voice command mode and return to the standard voice mode.
- the method or technique for exiting can be accomplished using a number of techniques, including the many embodiments described above.
- the example embodiment illustrated in FIG. 7 illustrates an example implementation that determines whether a command is an alphanumeric command or a function command.
- the system can be programmed to assume that if the voice command mode is entered during a conversation mode, that the commands will be alphanumeric commands and that DTMF tones are to be generated in response thereto. While this can simplify the software, it can also result in fewer features available to the user.
- FIG. 8 is an operational flow diagram illustrating a process for implementing a voice command mode for an incoming call in accordance with one embodiment of the invention.
- the communication device upon receipt of a call, the communication device indicates that a call is incoming. This can be accomplished using an audible or visual indicator, a vibrator, or other indication techniques.
- the communication device enters the voice command mode. In one embodiment as described above, the communication device can automatically enter the voice command mode upon the receipt of an incoming call in the idle mode.
- the communication device identifies the caller. The identification of the caller can be provided using a caller i.d. type of display, or can be an audible indication of the caller using voice synthesis techniques. In one embodiment, the identification can be performed automatically, without requiring user intervention or a specific request by the user.
- the communication device can enter the voice command mode and wait for the voice command of the user to ask the communication device to either identify the call, or answer the call.
- the communication device accepts the command.
- the command is interpreted, and in one example embodiment, the possible acceptable commands are answer, ignore, or send to voice mail.
- the interpretation and the results are illustrated in steps 490 , 492 , 494 and, 496 .
- the phone in answering a call, can revert back to a standard mode, or remain in voice command mode.
- the choice to remain in voice command mode can be made based on identification of the incoming caller. If, for example, the user receives phone calls from an automated system (EG a paging system, voice mail system, or other automated system), the identification of such systems can be provided to the communication device. The communication device can remain in the voice command mode such that the user can enter voice commands (EG menu choices) to navigate through the options provided by the incoming call from the automated system.
- EG automated system
- the communication device can be programmed to assume the income caller is a conventional voice caller and that the voice command mode can be exited so the user can converse with the caller.
- the above examples generally illustrate situations in which the system can be configured to perform differently based on a mode of the phone or a type of command entered by a caller.
- FIG. 9 An example processor-based system 502 is shown in FIG. 9 according to one embodiment of the invention.
- the computer system 502 includes one or more processors, such as processor 504 .
- the processor 504 is connected to a communication bus 506 .
- Various software embodiments are described in terms of this example computer system.
- the embodiments, features and functionality of the invention as described above are not dependent on a particular computer system or processor architecture or on a particular operating system. In fact, after reading this document, it will become apparent to a person of ordinary skill in the relevant art how to implement the invention using other computer or processor systems and/or architectures.
- Processor-based system 502 can include a main memory 508 , preferably random access memory (RAM), and can also include a secondary memory 510 .
- the secondary memory 510 can include, for example, a hard disk drive 512 and/or a removable storage drive 514 , representing a floppy disk drive, a magnetic tape drive, an optical disk drive, etc.
- the removable storage drive 514 reads from and/or writes to a removable storage medium 518 in a well known manner.
- Removable storage media 518 represents a floppy disk, magnetic tape, optical disk, etc. which is read by and written to by removable storage drive 514 .
- the removable storage media 518 includes a computer usable storage medium having stored therein computer software and/or data.
- secondary memory 510 may include other similar means for allowing computer programs or other instructions to be loaded into computer system 502 .
- Such means can include, for example, a removable storage unit 522 and an interface 520 .
- Examples of such can include a program cartridge and cartridge interface (such as that found in video game devices), a removable memory chip (such as an EPROM, or PROM) and associated socket, and other removable storage units 522 and interfaces 520 which allow software and data to be transferred from the removable storage unit 518 to computer system 502 .
- Computer system 502 can also include a communications interface 524 .
- Communications interface 524 allows software and data to be transferred between computer system 502 and external devices.
- Examples of communications interface 524 can include a modem, a network interface (such as, for example, an Ethernet card), a communications port, a PCMCIA slot and card, etc.
- Software and data transferred via communications interface 524 are in the form of signals which can be electronic, electromagnetic, optical or other signals capable of being received by communications interface 524 . These signals are provided to communications interface via a channel 528 .
- This channel 528 carries signals and can be implemented using a wireless medium, wire or cable, fiber optics, or other communications medium.
- Some examples of a channel can include a phone line, a cellular phone link, an RF link, a network interface, and other communications channels.
- computer program medium and “computer usable medium” are used to generally refer to media such as removable storage device 518 , a disk capable of installation in disk drive 512 , and signals on channel 528 .
- These computer program products are means for providing software or program instructions to computer system 502 .
- Computer programs are stored in main memory 508 and/or secondary memory 510 . Computer programs can also be received via communications interface 524 . Such computer programs, when executed, enable the computer system 502 to perform the features of the present invention as discussed herein. In particular, the computer programs, when executed, enable the processor 504 to perform the features of the present invention. Accordingly, such computer programs represent controllers of the computer system 502 .
- the software may be stored in, or transmitted via, a computer program product and loaded into computer system 502 using removable storage drive 514 , hard drive 512 or communications interface 524 .
- the control logic when executed by the processor 504 , causes the processor 504 to perform the functions of the invention as described herein.
- the elements are implemented primarily in hardware using, for example, hardware components such as PALs, application specific integrated circuits (ASICs) or other hardware components. Implementation of a hardware state machine so as to perform the functions described herein will be apparent to persons skilled in the relevant art(s). In yet another embodiment, elements are implemented using a combination of both hardware and software.
- the software may be stored in, or transmitted via, a computer program product and loaded into computer system 502 using removable storage drive 514 , hard drive 512 or communications interface 524 .
- the control logic when executed by the processor 504 , causes the processor 504 to perform the functions of the invention as described herein.
- FIG. 10 is a block diagram and generally illustrating functionality which can be used to implement one or more aspects of the voice command mode according to one embodiment of the invention.
- the system includes a microphone 562 configured to receive audible information such as, for example, conversational voice or voice commands from a user of the communication device.
- microphone 562 can convert the audible signal into an electrical signal representing the audible signal.
- the audio information can be forwarded to a transmitter 572 for communication to the other party. If, on the other hand, the communication device is in a voice command mode, the electrical signals representing the audio information are provided to a voice recognition unit 564 .
- a switch 566 can be provided to control entry of the communication device is into and out of the voice command mode.
- voice recognition unit 564 can be activated and the voice masked from being transmitted to the other parties.
- the switch 566 can be implemented using hardware, software, or a combination thereof. As indicated in the example embodiments described above, the switch can be a manual switch, or can be a software switch triggered by the occurrence of predetermined or programmed events.
- Voice recognition unit 564 can comprise hardware, software, or a combination thereof. In fact, there are numerous products on the market that can be used to implement a voice recognition functionality in accordance with the features and aspects of the invention disclosed herein. Also included is a command interpreter configured to interpret the received and recognized commands. Preferably, in one embodiment, voice recognition and command interpretation are performed using a combination of hardware and software. More specifically, in one embodiment, speech recognition and command interpretation and can be implemented using software executed by a processor such as, for example, processor 104 of the example application.
- a DTMF tone generator 570 is provided.
- DTMF tone generator 570 can be implemented using hardware or software, or a combination thereof, and can also be operated under the control of a processor such as, for example, processor 104 of the example application.
- the generated DTMF tones are provided to transmitter 572 for transmission to the other party.
- the user utilizes the communication device to access an automated phone system such as, for example, a voice mail system.
- microphone 562 receives the spoken command, and converts it to electrical signals.
- the electrical signals are interpreted by voice recognition unit 564 as, for example, spoken words.
- the voice e.g., the spoken words
- command interpreter 568 e.g., the spoken words
- DTMF tone generator 570 generates the tones corresponding to the spoken commands and provides these to transmitter 572 for transmission (e.g., via a telephone line) to the recipient, a voice mail system.
- a voice synthesizer 584 can be included with a communication device to provide voice or “open” information via a speaker 582 to the user.
- the communication device can use voiced synthesizer 584 to “say” the identity of an incoming caller when a call is received.
- voice synthesizer 584 can be implemented using hardware, software, or a combination of the above, and can be operated under the control of processor 104 .
- signal conditioning, amplification and other signal processing functions can be performed in sending signals and information among various components of the communication handset.
Abstract
Description
Claims (50)
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AU4488900A (en) | 2000-11-17 |
WO2000067497A1 (en) | 2000-11-09 |
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